[Deejay Dan]

Here is the deal, I run a VPS for one of my forums, I use mail washer on my computer and every time I receive an email from my site (vBulletin Notices) Mailwasher marks it as origin blacklisted. Now it's not on my personal black list. I know mailwasher checks the sending IP against a couple of spam services (Spam cop, etc)

My problem is I don't know how I got blacklisted the only things that send email from that server are two vBulletin boards and everything is opt in.

How do I got about finding out what service marked my IP as a spam haven? Plus, how would I got about fixing it?

Thanks,
Dan